Question 127296
Well if we solve for z, we get...



{{{7z+5=0}}} Start with the given equation




{{{7z=0-5}}}Subtract 5 from both sides



{{{7z=-5}}} Combine like terms on the right side



{{{z=(-5)/(7)}}} Divide both sides by 7 to isolate z




{{{z=-5/7}}} Reduce


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Answer:

So our answer is {{{z=-5/7}}}  (which is approximately {{{z=-0.714285714285714}}} in decimal form)




However, it will help if you post the original problem to see where you went wrong